发明授权
- 专利标题: Exhaust gas recirculation control system for engine
- 专利标题(中): 发动机废气再循环控制系统
-
申请号: US09553260申请日: 2000-04-20
-
公开(公告)号: US06289883B1公开(公告)日: 2001-09-18
- 发明人: Shinichi Wakutani , Yuji Matsuo
- 申请人: Shinichi Wakutani , Yuji Matsuo
- 优先权: JP11-116735 19990423
- 主分类号: F02M2507
- IPC分类号: F02M2507
摘要:
An exhaust gas recirculation control system for bringing an actual amount of air that is detected by an air flow sensor to a target value by feedback controlling a valve lift of an EGR valve throttles down a throttle valve immediately before an exhaust gas inlet port of an intake passage when a large amount of exhaust gas is intended to be recirculated. When the largest actual amount of air is reduced due to closing the throttle valve, the target amount of air is changed smaller so as to ensure the actual amount of air to reach the target value through the feedback control.
信息查询